In the following questions, a part of the sentence is given in bold. Below are given alternatives to the bold part at (1), (2) and (3) which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is (4).
Will you type these letters now ?

Options

A. Could
B. Can
C. Shall
D. No Improvement

Answer

A

Explanation

Can (Mod.V.) `to` less polite
Could (Mod.V) `to` more polite than Can
The sentence structure is as follows :

Hence, Could is the right usage.